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May 24, 2018 at 18:57 comment added user74900 @MakhalanDuff, regarding your parenthetical remark: the question in the title and the body are not the same
Dec 28, 2010 at 6:09 comment added Makhalan Duff I don't see how this answers anything... You just claimed that in the case r=3 and the field=Q (notice that I required positive characteristic) the a_i's don't matter (which, btw, would be a positive answer in that case and not a negative one).
Dec 28, 2010 at 5:57 history answered Mephisto CC BY-SA 2.5